1. PAG/ASG Meeting Monday, 14th July, 2003 University of Surrey 30BC03

2. PAG - Chair: Alan Robins 1010-1030Review of previous PAG meeting (24/3/03) 1030-1200Programme report 1200-1230The second field campaign 1230-1330: Lunch - EnFlo Lab 1330-1430Discussion 1430-1500Conclusions; Date of next meeting ASG - Chair: Rex Britter 1515-1530Introduction 1530-1600Matters from previous meeting (24/3/03) 1600-1645Plans and objectives 1645-1700Conclusions; Date of next meeting

3. EPSRC Consortium Project University of Surrey Alan Robins Imperial College Roy Colvile University of Bristol Dudley Shallcross University of Cambridge Rex Britter University of Leeds Margaret Bell University of Reading Stephen Belcher Proposal support London -> APRIL/EA/Local Government DEFRA, AEQ Division; DSTL (Porton Down), HSE; Meteorological Office

4. DAPPLE’s key aim is to enhance understanding of pollutant dispersion processes in realistic urban environments and thereby make possible improvements in predictive ability that will enable better planning and management of urban air quality. DAPPLE intends to quantify determinants of human exposure to air pollution from outdoor sources, over short periods of time as sources and people move together through the urban environment, as well as over longer periods of time in roadside buildings and the urban environment in general. Background - 1

5. The basic understanding gained will be used:  in the evaluation and development of appropriate decision support tools and risk assessment methodologies  in the evaluation and development of best practice guidelines for their application  in assessing the inherent uncertainty in their use  in assessing their contribution to the sustainable development of safer, more pleasant cities. As far as possible, DAPPLE deliverables will be of generic value and applicable both within UK urban areas and others overseas. Background - 2

6. In an urban setting:  To what pollution levels are individuals exposed and what controls this?  What determines the relationship between emissions and exposure?  What are the causes of variability in mean and individual dose rates?  How do we best go about managing and improving local urban air quality?  How do pollutants move in and over a street network?  What tools are needed to deal with these matters?  How should these be developed for incident management?

7.  Emissions modelling  Tracer experiments  Individual dose measurement  Air quality monitoring  Wind tunnel studies  Model evaluation & development Activities

8.  Project background and progress - plans for first field trials (28/4 - 23/5/03)  Management structure  Programme Advisory Group - role - terms of reference  Application Sub-Group - applications and requirements - six question invitation (seven replies) PAG 24/3/03

9. First field trials 28/4/03 - 23/5/03

10. Programme report 1.First campaign, 28th April - 23rd May 2003, successfully completed. 2.Current news and project updates are on our public site at: http:/www.dapple.org.uk 3.Second field campaign planned for: 19th April- 28th May 2004

11. Programme report 1. First field campaign and initial data analysis Introduction and summary (Sam Arnold) Wind and weather (Adrian Dobre) Tracer release and sampling (Dudley Shallcross) Exposure sampling (Surbjit Kaur, Peter Walsh) Traffic flow, traffic & pollution (James Tate) 2. Wind tunnel modelling (Hong Cheng) 3. Modelling (Marina Neophytou, Omduth Coceal)

12. Second field campaign Second field campaign planned for: 19th April- 28th May 2004 An extended period to facilitate successful tracer studies. The strategy will be more flexible to allow a wider range of wind directions to be used. Monitoring objectives to be determined.

13. Other activities Air pollution day at Westminster City Co - 1/10/2003 Science day - research event Progress seminar - Bristol Publications Conferences